1353430557 has 6 divisors (see below), whose sum is σ = 1954955262. Its totient is φ = 902287032.

The previous prime is 1353430531. The next prime is 1353430567. The reversal of 1353430557 is 7550343531.

1353430557 is a `hidden beast` number, since 13 + 53 + 43 + 0 + 557 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1353430521 + 36 = 36789^2 + 6^2 .

It is not a de Polignac number, because 1353430557 - 2⁸ = 1353430301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1353430567) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 75190578 + ... + 75190595.

It is an arithmetic number, because the mean of its divisors is an integer number (325825877).

Almost surely, 2^1353430557 is an apocalyptic number.

It is an amenable number.

1353430557 is a deficient number, since it is larger than the sum of its proper divisors (601524705).

1353430557 is a wasteful number, since it uses less digits than its factorization.

1353430557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150381179 (or 150381176 counting only the distinct ones).

The product of its (nonzero) digits is 94500, while the sum is 36.

The square root of 1353430557 is about 36789.0004892767. Note that the first 3 decimals coincide. The cubic root of 1353430557 is about 1106.1448266191.

Subtracting from 1353430557 its sum of digits (36), we obtain a square (1353430521 = 36789²).

The spelling of 1353430557 in words is "one billion, three hundred fifty-three million, four hundred thirty thousand, five hundred fifty-seven".